EP2929167A2 - Procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne - Google Patents

Procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne

Info

Publication number
EP2929167A2
EP2929167A2 EP13810912.9A EP13810912A EP2929167A2 EP 2929167 A2 EP2929167 A2 EP 2929167A2 EP 13810912 A EP13810912 A EP 13810912A EP 2929167 A2 EP2929167 A2 EP 2929167A2
Authority
EP
European Patent Office
Prior art keywords
curve
cylinder
cylinder pressure
determining
internal combustion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13810912.9A
Other languages
German (de)
English (en)
Other versions
EP2929167B1 (fr
Inventor
Alexander Knafl
Philipp Henschen
Paul Hagl
Heidi GRUBER
Markus Bauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Everllence SE
Original Assignee
MAN Diesel and Turbo SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Diesel and Turbo SE filed Critical MAN Diesel and Turbo SE
Publication of EP2929167A2 publication Critical patent/EP2929167A2/fr
Application granted granted Critical
Publication of EP2929167B1 publication Critical patent/EP2929167B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/009—Electrical control of supply of combustible mixture or its constituents using means for generating position or synchronisation signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
    • F02D41/2409—Addressing techniques specially adapted therefor
    • F02D41/2419—Non-linear variation along at least one coordinate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/05—Testing internal-combustion engines by combined monitoring of two or more different engine parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
    • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
    • F02D41/28—Interface circuits
    • F02D2041/286—Interface circuits comprising means for signal processing

Definitions

  • the invention relates to a method for determining a cylinder pressure crankshaft position assignment for an internal combustion engine.
  • the invention is based on the object to provide a novel method for determining a cylinder pressure crankshaft position assignment for an internal combustion engine.
  • This object is achieved by a method for determining a cylinder pressure crankshaft position assignment for an internal combustion engine according to claim 1.
  • the method comprises the following steps: metrological detection of the crankshaft angle; metrological detection of the cylinder pressure; Calculating a cylinder volume dependent on the crankshaft angle; Determination of a curve for the logarithmic cylinder pressure over the logarithmic cylinder volume as a function of the crankshaft angle; Analyzing the curve and determining an offset value for the crankshaft angle to determine a time-accurate cylinder pressure crankshaft position mapping.
  • the inventive method allows automatic determination of cylinder pressure crankshaft position assignment for cylinders of an internal combustion engine with simple means and high accuracy.
  • the method according to the invention can be carried out automatically in internal combustion engines, both in fired operation and in non-fired, towed operation of an internal combustion engine.
  • the crankshaft angle and the cylinder pressure are detected metrologically.
  • the cylinder volume is calculated from the crankshaft angle, wherein a curve for the logarithmic cylinder pressure over the logarithmic cylinder volume as a function of the crankshaft angle is determined from the calculated cylinder volume, the measured crankshaft angle and the measured cylinder pressure.
  • This curve is analyzed and, depending on the analysis, an offset value for the crankshaft angle for determining the chronologically accurate cylinder pressure crankshaft position assignment is determined.
  • the curve is analyzed in the region of a cylinder inversion point for determining the offset value.
  • the curve can be analyzed in the region of a lower cylinder inversion point or in the region of an upper cylinder inversion point for determining the offset value.
  • the analysis of the curve in the area of the cylinder inversion point is particularly advantageous.
  • FIG. 1 shows a curve for determining an offset value for the crankshaft angle for determining a chronologically exact cylinder pressure crankshaft position assignment
  • FIGS. 2a to 2c show alternative details of the curve of FIG. 1.
  • the present invention relates to a method for automatically determining a cylinder pressure crankshaft position assignment for the cylinders of an internal combustion engine.
  • the inventive method is automatically carried out both in the fired operation of an internal combustion engine as well as non-fired, towed operation of an internal combustion engine.
  • a crankshaft angle is continuously measured by means of a rotary encoder, for example. Furthermore, the cylinder pressure is automatically detected with the aid of a pressure sensor, in particular depending on the crankshaft angle. From the metrologically detected crankshaft angle, the cylinder volume of the respective cylinder of the internal combustion engine is determined.
  • a curve is determined for the logarithmic cylinder pressure over the logarithmic cylinder volume as a function of the crankshaft angle. This curve is analyzed, wherein from the curve an offset value for the crankshaft angle for determining the exact timing cylinder pressure crankshaft position assignment is determined.
  • the analysis of the curve preferably takes place in the region of a cylinder inversion point, namely either in the area of the lower cylinder inversion point or bottom dead center or in the region of the upper cylinder inversion point or top dead center of a cylinder piston movement the respective cylinder of the internal combustion engine.
  • FIG. 1 shows in a highly schematic manner a curve for the logarithmic cylinder pressure log p over the logarithmic cylinder volume log V as a function of the crankshaft angle, wherein in FIG. 1 the logarithmic cylinder pressure log p is greater than the logarithmic cylinder volume log V for two full revolutions the crankshaft is applied, so over 720 ° of the crankshaft angle.
  • the diagram of Figure 1 therefore includes the combustion process and a charge change in the respective cylinder of the internal combustion engine.
  • Figures 2a, 2b and 2c show different, alternative details of the diagram of Figure 1 in the region of the lower reversal point and bottom dead center of the cylinder piston movement of the respective cylinder. In the region of the lower point of reversal or bottom dead center of the cylinder piston movement of the respective cylinder, the curve of FIG. 1 or of FIGS. 2 a, 2 b and 2 c is formed by curved segments 1 1 and
  • the curve in the region of this reversal point 13 is analyzed, namely in such a way that when in the region of the cylinder inversion point
  • an area between the curve segments 1 1 and 12 of the curve in the region of the reversal point 13 is determined, wherein the offset value is determined depending on the area to compensate for the detected time shift between the cylinder pressure signal and the crankshaft angle signal.
  • the offset value is determined iteratively such that the area between the curve segments 1 1 and 12 of the curve in the region of the cylinder inversion point is minimal. This is the case, for example, in the diagram of FIG. 2a.
  • the entire process can be performed continuously and automatically during the fired or towed operation of an internal combustion engine. In this way, an exact time assignment of the cylinder pressure to the crankshaft angle can be determined fully automatically during operation in order to control or regulate the operation of the internal combustion engine depending on this.

Landscapes

  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Testing Of Engines (AREA)

Abstract

L'invention concerne un procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne. Ledit procédé comprend les étapes suivantes : la détection de l'angle du vilebrequin par une technique de mesure; la détection de la pression du cylindre par une technique de mesure; le calcul d'un volume du cylindre fonction de l'angle du vilebrequin; la détermination du tracé d'une courbe de la pression logarithmique du cylindre sur le volume logarithmique du cylindre en fonction de l'angle du vilebrequin; l'analyse du tracé de la courbe et détermination d'une valeur de décalage de l'angle du vilebrequin pour déterminer une association exacte dans le temps entre pression du cylindre et position du vilebrequin.
EP13810912.9A 2012-12-06 2013-12-06 Procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne Not-in-force EP2929167B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012023834.7A DE102012023834A1 (de) 2012-12-06 2012-12-06 Verfahren zur Bestimmung einer Zylinderdruck-Kurbelwellenpositions-Zuordnung für eine Brennkraftmaschine
PCT/EP2013/075811 WO2014086980A2 (fr) 2012-12-06 2013-12-06 Procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne

Publications (2)

Publication Number Publication Date
EP2929167A2 true EP2929167A2 (fr) 2015-10-14
EP2929167B1 EP2929167B1 (fr) 2016-10-26

Family

ID=49816907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13810912.9A Not-in-force EP2929167B1 (fr) 2012-12-06 2013-12-06 Procédé permettant de déterminer une association entre pression du cylindre et position du vilebrequin dans un moteur à combustion interne

Country Status (7)

Country Link
US (1) US20150308360A1 (fr)
EP (1) EP2929167B1 (fr)
JP (1) JP6030775B2 (fr)
KR (1) KR101738284B1 (fr)
CN (1) CN104822923B (fr)
DE (1) DE102012023834A1 (fr)
WO (1) WO2014086980A2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014004327U1 (de) * 2014-05-24 2015-08-26 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Mittel zum Ermitteln einer Zuordnung zwischen einer Kurbelwellenwinkelgröße und einer Kolbenstellungsgröße
US9689321B2 (en) * 2015-06-10 2017-06-27 GM Global Technology Operations LLC Engine torque control with combustion phasing
CN107949692B (zh) * 2015-09-11 2020-11-24 瓦锡兰芬兰有限公司 用于确定与曲柄角测量有关的偏移的方法和控制系统
EP3369918B1 (fr) * 2015-10-27 2020-09-23 Hitachi Automotive Systems, Ltd. Dispositif de commande pour moteur à combustion interne
JP6281579B2 (ja) * 2016-01-27 2018-02-21 トヨタ自動車株式会社 内燃機関の制御装置
GB2576025A (en) * 2018-08-01 2020-02-05 Comb Order Ltd Synchronous real time dynamometer
DE102019212275A1 (de) 2019-08-15 2021-02-18 Volkswagen Aktiengesellschaft Verfahren zur Adaption einer erfassten Nockenwellenstellung, Steuergerät zur Durchführung des Verfahrens, Verbrennungsmotor und Fahrzeug

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CN1085630A (zh) * 1992-10-13 1994-04-20 张弘 跟踪式点火控制系统
DE4318504C2 (de) * 1993-06-03 2001-03-29 Siemens Ag Verfahren zur Erzeugung eines Regelsignals für den Zündzeitpunkt einer Brennkraftmaschine
JPH0726966A (ja) * 1993-07-07 1995-01-27 Toyota Motor Corp 吸気制御弁
US6484694B2 (en) * 2000-12-05 2002-11-26 Detroit Diesel Corporation Method of controlling an internal combustion engine
US6553305B2 (en) * 2000-12-29 2003-04-22 Visteon Global Technologies, Inc. Real time adaptive engine position estimation
JP4281063B2 (ja) * 2004-06-09 2009-06-17 トヨタ自動車株式会社 クランク角センサの補正装置および補正方法
JP4367248B2 (ja) * 2004-06-10 2009-11-18 株式会社デンソー 内燃機関の制御装置
US7454286B2 (en) * 2006-12-20 2008-11-18 Delphi Technologies, Inc. Combustion control in an internal combustion engine
US7568467B2 (en) * 2007-03-23 2009-08-04 Gm Global Technology Operations, Inc. Crank position correction using cylinder pressure
US7469576B2 (en) * 2007-04-05 2008-12-30 Delphi Technologies, Inc. Method and apparatus for determining TDC for each cylinder of a multi-cylinder internal combustion engine
WO2011036743A1 (fr) * 2009-09-24 2011-03-31 トヨタ自動車株式会社 Dispositif de commande pour moteur à combustion interne
JP5302173B2 (ja) * 2009-12-07 2013-10-02 日立オートモティブシステムズ株式会社 内燃機関の可変動弁装置

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Also Published As

Publication number Publication date
EP2929167B1 (fr) 2016-10-26
CN104822923A (zh) 2015-08-05
US20150308360A1 (en) 2015-10-29
WO2014086980A3 (fr) 2014-10-16
JP2015536417A (ja) 2015-12-21
KR101738284B1 (ko) 2017-05-19
JP6030775B2 (ja) 2016-11-24
KR20150088894A (ko) 2015-08-03
WO2014086980A2 (fr) 2014-06-12
DE102012023834A1 (de) 2014-06-12
CN104822923B (zh) 2017-08-08

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